Had sex with my boyfriend about 2 weeks ago and didn't notice the condom had slipped off and we are not sure if he cummed in me because he pulled out as he was cumming. Took a take action pill about 45 minutes later because we couldn't find a plan b. Yesterday, my pee was a little brown and was wondering if this can be implantation bleeding? It only lasted a day. I have also been eating more than usual lately but I think its because my period is coming soon and that s how I feel before every period. My periods are also irregular and I usually get my period every month and a half sometimes more sometimes less. Can I be pregnant? I also have an irregular period so I can't really predict when my ovulation days are.